@ferdinand Thank you! you can find it in the old coffee help "using matrices" tutorial section: [image: 1694524159445-88c1a768-9234-4fe1-b6eb-c93e4d2ebf6a-grafik.png] My own code is ridicoulusly simple: main() { ang = ( vnorm(vector1) * vnorm(vector2)) ; } Just looking for a python "vnorm"

Done and delivered.

Hi, There is the EffectorData class that could help you to create your own effector. This class is only available on c++. With python the only option is to use the python effector. And that could be tricky because you need to retrieve the size of all clones. Doable but tricky imo. I hope that you will find a developer to do it, this might look easy to do but is harder than you might thought. Cheers, Manuel

@r_gigante Thank you!